test(ws): coerce liquidation feed d to int for wire str/int tolerance

Author: martinkersner

tests/test_ws_live.py

@@ -177,7 +177,7 @@ async def run():
     assert isinstance(first, dict)
     for field in ("e", "d", "s", "b", "q", "sd"):
         assert field in first, f"missing {field!r} in {first!r}"
-    assert isinstance(first["d"], int) and first["d"] > 1_000_000_000_000
+    assert int(first["d"]) > 1_000_000_000_000  # plausible UNIX-ms (str or int)
     assert any(f.get("snap") is True for f in frames)